2010 Audi S4 Bulb Sizes
Quick answer: the 2010 Audi S4 uses D3S low and high beams.
2010 Audi S4 bulb size chart
| Position | Bulb size (tap to shop) |
|---|---|
| Headlight Bulb High Beam and Low Beam | D3S |
| Back Up Reverse Light Bulb | 921 |
| Side Marker Light Bulb Front | 2825 |
| Glove Box Light Bulb | 2825 |
| Trunk or Cargo Area Light | 2825 |
| Map Light Bulb | 2825 |
| Interior Door Light Bulb | 2825 |
| Courtesy Light Bulb(Compare to original - Option 1) | 2825 |
Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.
Which bulb should I buy?
- Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
- Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
- Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.
Our picks by bulb size
D3S (headlight high beam and low beam)
- Top pick: SEALIGHT D3S HID bulbs
921 (back up reverse light)
- Halogen: Sylvania 921 Long Life (2 bulbs)
- LED: LASFIT 921 LED (pack of 2)
2825 (side marker light front, glove box light, trunk or cargo area light and more)
- Halogen: Sylvania 194 SilverStar (2 bulbs)
- LED: LASFIT 194 LED (2 pcs)
For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.
While you're in there
- Cloudy headlights? New bulbs won't fix a yellowed lens. A replacement housing makes a bigger difference than any bulb: see Audi S4 headlights at NTXGlow.
- Tail lights faded or cracked? Audi S4 tail lights at NTXGlow.
Common questions
What size is the low beam headlight bulb on a 2010 Audi S4?
D3S.
What size is the high beam headlight bulb on a 2010 Audi S4?
D3S.
Can I put LED bulbs in a 2010 Audi S4?
Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first. Some trims of this vehicle use HID (D-series) headlight bulbs. Replace those with the same HID size, not an LED.
How do I make sure I'm buying the right size?
Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.
Other Audi S4 years
2007 Audi S4 bulb sizes · 2008 Audi S4 bulb sizes · 2009 Audi S4 bulb sizes · 2011 Audi S4 bulb sizes · 2012 Audi S4 bulb sizes · 2013 Audi S4 bulb sizes
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